Industrial solid waste combined heat and power generation treatment system

Abstract

The utility model relates to the technical field of industrial solid waste treatment, in particular to an industrial solid waste combined heat and power generation treatment system which comprises a discharging hall and a solid waste warehouse connected with the discharging hall, and a solid waste crane is arranged above the solid waste warehouse. The incinerator is connected with the solid waste warehouse, and the solid waste hoist can grab industrial solid waste in the solid waste warehouse and hoist the industrial solid waste into the incinerator; the waste heat boiler is connected with the incinerator, the purification device and the steam turbine generator are connected with the waste heat boiler, high-temperature flue gas generated by the incinerator is cooled through the waste heat boiler and introduced into the purification device, and steam generated by the waste heat boiler is introduced into the steam turbine generator. According to the industrial waste solid incineration treatment device, industrial waste solid can be thoroughly incinerated, steam is generated through heat exchange of the waste heat boiler in the treatment process, the steam is introduced into the steam turbine generator to generate electricity, combined heat and power generation is achieved, waste is harmlessly and energetically utilized, and the industrial waste solid incineration treatment device has high environmental and economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of industrial solid waste treatment technology, specifically to an industrial solid waste cogeneration treatment system. Background Technology

[0002] Industrial solid waste refers to solid waste generated in industrial production activities, including various waste residues, dust, scraps and leather scraps from the garment processing industry, and other waste such as papermaking waste from paper mills.

[0003] Currently, industrial solid waste is typically treated through landfill or incineration. Incineration methods generally involve feeding waste into an incinerator for high-temperature combustion, and the resulting high-temperature flue gas is discharged after acid removal and dust removal, resulting in significant heat loss during the process. Based on this, a combined heat and power (CHP) system for industrial solid waste is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an industrial solid waste cogeneration system that realizes cogeneration, enabling the harmless and energy-efficient utilization of waste, and thus achieving high environmental and economic benefits.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an industrial solid waste cogeneration system, comprising an unloading hall, a solid waste storage facility connected to the unloading hall, a solid waste crane installed above the solid waste storage facility; an incinerator connected to the solid waste storage facility, the solid waste crane being able to grab industrial solid waste from the solid waste storage facility and hoist it into the incinerator; a waste heat boiler connected to the incinerator, and a purification device and a steam turbine generator connected to the waste heat boiler, wherein the high-temperature flue gas generated by the incinerator is cooled by the waste heat boiler and then fed into the purification device, and the steam generated by the waste heat boiler is fed into the steam turbine generator.

[0006] Preferably, the purification device includes a deacidification tower connected to a waste heat boiler, a bag filter connected to the deacidification tower, a chimney connected to the bag filter, and an induced draft fan installed between the chimney and the bag filter.

[0007] Preferably, the solid waste storage tank has a depth of 2m.

[0008] Preferably, the incinerator is a high-efficiency grate furnace.

[0009] Preferably, the waste heat boiler is a high-efficiency medium-temperature sub-high-pressure boiler.

[0010] Preferably, the chimney comprises a circular steel inner cylinder and a concrete outer cylinder.

[0011] Preferably, the steam turbine generator is a back-pressure generator.

[0012] This utility model provides an industrial solid waste cogeneration treatment system, which has the following advantages compared with the prior art:

[0013] This invention can thoroughly incinerate industrial solid waste. During the treatment process, steam is generated through heat exchange in a waste heat boiler. The steam is then fed into a steam turbine generator to generate electricity, thus realizing combined heat and power. This invention enables the harmless and energy-efficient utilization of waste, resulting in significant environmental and economic benefits. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is a schematic diagram of the industrial solid waste cogeneration treatment system of this utility model.

[0016] In the diagram: 1-Unloading hall, 2-Solid waste storage, 3-Solid waste hoist, 4-Incinerator, 5-Waste heat boiler, 6-Deacidification tower, 7-Bag dust collector, 8-Exhaust fan, 9-Chimney, 10-Steam turbine generator. Detailed Implementation

[0017] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0018] Currently, in industrial solid waste treatment systems, industrial solid waste is incinerated and then purified before being discharged, resulting in a significant waste of thermal energy. For example... Figure 1As shown, an industrial solid waste cogeneration system is provided, including an unloading hall 1, a solid waste storage 2, a solid waste hoist 3, an incinerator 4 (high-efficiency grate furnace), a waste heat boiler 5 (high-efficiency medium-temperature sub-high-pressure boiler), a deacidification tower 6, a bag filter 7, an induced draft fan 8, a chimney 9, and a steam turbine generator 10 (back pressure unit). The unloading hall 1 is located at the 0m level. The solid waste storage 2, connected to the unloading hall 1, is used for temporary storage of industrial solid waste. The solid waste storage 2 is 2m deep, which saves on construction costs. A solid waste crane 3 is installed above the solid waste storage 2. The solid waste crane 3 can grab the industrial solid waste in the solid waste storage 2 and lift it into the incinerator 4 connected to the solid waste storage 2. The industrial solid waste is completely incinerated, and the flue gas is kept at a temperature of more than 850°C for more than 2 seconds to ensure the complete elimination of harmful substances. A water-cooled grate is used to adapt to the complex composition and high calorific value of the solid waste. The cooling water is heated by the grate and then enters the boiler thermal system for heat utilization. The thermal efficiency of the incinerator 4 is as high as 97%. The high-temperature flue gas generated by incineration then undergoes heat exchange in the waste heat boiler 5. After heat exchange, the temperature of the flue gas is reduced to 190°C, and then it enters the purification device for purification and discharge. At the same time, the high-temperature flue gas generates steam through heat exchange in the waste heat boiler 5. The steam is then fed to the steam turbine generator 10 to generate electricity and provide heat to the outside. Through combined heat and power, the harmless and energy-efficient utilization of waste is achieved, which has high environmental and economic benefits.

[0019] The purification system includes a deacidification tower 6 connected to the waste heat boiler 5, a bag filter 7 connected to the deacidification tower 6, and a chimney 9 connected to the bag filter 7. The chimney 9 consists of a circular steel inner cylinder and a concrete outer cylinder, with platforms installed at regular intervals for easy maintenance. An induced draft fan 8 is installed between the chimney 9 and the bag filter 7. The low-temperature flue gas from the waste heat boiler 5 enters the deacidification tower 6 to remove HCl and SO2 acidic gases, and then enters the bag filter 7 to remove dust. The purified low-temperature flue gas is then discharged through the induced draft fan 8 into the chimney 9.

[0020] The aforementioned industrial solid waste cogeneration system has a treatment capacity of 480 t / d, a main steam output of 100 t / h, a power generation of 9 MW, an ash and slag burn loss rate of <3%, and flue gas dust emissions of <10 mg / Nm³. 3 SO2 < 50 mg / Nm 3 HCl <10mg / Nm 3 .

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An industrial solid waste cogeneration system, comprising an unloading hall, characterized in that: A solid waste storage facility connected to the unloading hall is equipped with a solid waste crane above it. The solid waste storage facility is connected to the incinerator. The solid waste crane can grab industrial solid waste from the solid waste storage facility and lift it into the incinerator. The waste heat boiler is connected to the incinerator, and the purification device and steam turbine generator are also connected to the waste heat boiler. The high-temperature flue gas generated by the incinerator is cooled by the waste heat boiler and then fed into the purification device. The steam generated by the waste heat boiler is fed into the steam turbine generator.

2. The industrial solid waste cogeneration treatment system according to claim 1, characterized in that: The purification device includes a deacidification tower connected to a waste heat boiler, a bag filter connected to the deacidification tower, a chimney connected to the bag filter, and an induced draft fan installed between the chimney and the bag filter.

3. The industrial solid waste cogeneration treatment system according to claim 1, characterized in that: The solid waste storage area is 2m deep.

4. The industrial solid waste cogeneration treatment system according to claim 1, characterized in that: The incinerator is a high-efficiency grate furnace.

5. The industrial solid waste cogeneration treatment system according to claim 1, characterized in that: The waste heat boiler is a high-efficiency medium-temperature sub-high-pressure boiler.

6. The industrial solid waste cogeneration treatment system according to claim 2, characterized in that: The chimney comprises a circular steel inner cylinder and a concrete outer cylinder.

7. The industrial solid waste cogeneration treatment system according to claim 1, characterized in that: The steam turbine generator is a back-pressure unit.

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